Three Pass三轨法
threenum.三n.三;三个adj.三个的
three principal index systems三大检索系统
three point stabilized reamer三点式稳定扩眼器
three-dimensional rotations三维空间转动
three diaphragm brake chamber三膜片制动分泵
three figure decimal fraction[计] 三位十进制小数
three-phase AC power source三相交流电源
three tablets and two temples三碑二庙(祠)